/* ── Theme tokens ───────────────────────────────────────────── */
:root {
  --c-bg:          #f8f9fa;
  --c-bg-alt:      #f1f5f9;
  --c-bg-card:     #ffffff;
  --c-border:      #e2e8f0;
  --c-text:        #334155;
  --c-text-muted:  #475569;
  --c-text-head:   #1e293b;
  --c-accent:      #2563eb;
  --c-accent-hover:#1d4ed8;
  --c-nav-bg:      rgba(248, 249, 250, 0.92);
  --c-nav-border:  rgba(0, 0, 0, 0.07);
  --c-nav-text:    #334155;
  --c-nav-muted:   #475569;
  --c-eyebrow:     #2563eb;
  --ff-body:       'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ff-head:       'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="dark"] {
  --c-bg:          #050d1a;
  --c-bg-alt:      #0a1628;
  --c-bg-card:     #0d1f38;
  --c-border:      rgba(0, 212, 255, 0.18);
  --c-text:        #e8f4f8;
  --c-text-muted:  #94b8d0;
  --c-text-head:   #e8f4f8;
  --c-accent:      #00d4ff;
  --c-accent-hover:#00b8d9;
  --c-nav-bg:      rgba(5, 13, 26, 0.88);
  --c-nav-border:  rgba(0, 212, 255, 0.18);
  --c-nav-text:    #e8f4f8;
  --c-nav-muted:   #7aa0be;
  --c-eyebrow:     #00d4ff;
  --ff-body:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ff-head:       'Bungee', -apple-system, sans-serif;
}

/* ── Reset / base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--ff-body);
  font-size: 16px;
  color: var(--c-text);
  background: var(--c-bg);
  scroll-behavior: smooth;
  transition: background 0.3s, color 0.3s;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 500;
  font-family: var(--ff-body);
  text-decoration: none;
  transition: all 0.18s ease;
  cursor: pointer;
}

.btn--ghost {
  border: 1.5px solid rgba(255,255,255,0.7);
  color: #fff;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(6px);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.25);
  border-color: #fff;
}

.btn--solid {
  background: var(--c-accent);
  color: #fff;
}

.btn--solid:hover {
  background: var(--c-accent-hover);
}

.btn--outline-dark {
  border: 1.5px solid var(--c-text);
  color: var(--c-text);
  background: transparent;
}

.btn--outline-dark:hover {
  background: var(--c-text);
  color: var(--c-bg);
}

/* ── Navbar ─────────────────────────────────────────────────── */
.orbis-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 2px 24px;
  height: 52px;
  /* Hero state: very light frosted accent tint */
  background: color-mix(in srgb, var(--c-accent) 5%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--c-accent) 12%, transparent);
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-sizing: border-box;
  font-family: var(--ff-body);
  font-size: 14px;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

/* After scroll: become fixed + standard frosted bg */
body.scrolled .orbis-nav {
  position: fixed;
  background: var(--c-nav-bg);
  border-bottom-color: var(--c-nav-border);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

/* Blog/auth pages have no hero, always use solid frosted bg */
body:not(.has-hero) .orbis-nav {
  position: fixed;
  background: var(--c-nav-bg);
  border-bottom-color: var(--c-nav-border);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

/* Push main content below the fixed navbar on non-hero pages */
body:not(.has-hero) main {
  padding-top: 52px;
}

/* ── Brand ───────────────────────────────────────────────────── */
.orbis-nav__brand {
  grid-column: 1;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-self: start;
}

.orbis-nav__logo {
  height: 45px;
  width: 45px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
  border: none;
  outline: none;
}

/* Brand label: hidden everywhere */
.orbis-nav__brand-label {
  display: none;
}

/* ── Centre container ────────────────────────────────────────── */
.orbis-nav__centre {
  grid-column: 2;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ── Links list ──────────────────────────────────────────────── */
.orbis-nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 1;
}

.orbis-nav__item {
  position: relative;
}

.orbis-nav__link {
  display: block;
  padding: 5px 12px;
  color: #fff;
  text-decoration: none;
  opacity: 0.88;
  transition: opacity 0.15s;
  white-space: nowrap;
}

.orbis-nav__link:hover {
  opacity: 1;
}

body.scrolled .orbis-nav__link,
body:not(.has-hero) .orbis-nav__link {
  color: var(--c-nav-text);
}

/* ── Sliding pill ────────────────────────────────────────────── */
.orbis-nav__pill {
  position: absolute;
  border: 1.5px solid var(--c-accent);
  border-radius: 980px;
  pointer-events: none;
  opacity: 0;
  transition:
    left   0.3s cubic-bezier(.4, 0, .2, 1),
    width  0.3s cubic-bezier(.4, 0, .2, 1),
    top    0.2s ease,
    height 0.2s ease,
    opacity 0.2s ease;
}

/* Hero state: pill border is white so it's visible on frosted bg */
.orbis-nav__pill {
  border-color: rgba(255, 255, 255, 0.85);
}

body.scrolled .orbis-nav__pill,
body:not(.has-hero) .orbis-nav__pill {
  border-color: var(--c-accent);
}

/* ── Dropdowns ───────────────────────────────────────────────── */
.orbis-nav__item--has-dropdown {
  position: relative;
}

.orbis-nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 6px 0;
  list-style: none;
  min-width: 140px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  z-index: 100;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.15s ease, visibility 0s linear 0.15s;
  pointer-events: none;
}

/* Invisible bridge fills gap so mouse can travel from link to dropdown */
.orbis-nav__item--has-dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -12px;
  right: -12px;
  height: 12px;
}

.orbis-nav__item--has-dropdown:hover .orbis-nav__dropdown {
  visibility: visible;
  opacity: 1;
  transition: opacity 0.15s ease, visibility 0s linear 0s;
  pointer-events: auto;
}

.orbis-nav__dropdown-link {
  display: block;
  padding: 8px 16px;
  color: var(--c-text);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: background 0.12s;
}

.orbis-nav__dropdown-link:hover {
  background: var(--c-bg-alt);
}

/* ── Right side ──────────────────────────────────────────────── */
.orbis-nav__right {
  grid-column: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  justify-self: end;
}

/* Theme emoji button */
.orbis-nav__theme-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 4px 6px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* Nav-sized btn override */
.orbis-nav__btn {
  padding: 6px 16px !important;
  font-size: 13px !important;
  text-decoration: none;
}

/* Ghost btn: white-border on hero, theme-colored after scroll */
.orbis-nav .btn--ghost {
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.orbis-nav .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
}

body.scrolled .orbis-nav .btn--ghost,
body:not(.has-hero) .orbis-nav .btn--ghost {
  border-color: var(--c-text);
  color: var(--c-text);
  background: transparent;
}

body.scrolled .orbis-nav .btn--ghost:hover,
body:not(.has-hero) .orbis-nav .btn--ghost:hover {
  background: var(--c-text);
  color: var(--c-bg);
}

/* Blog pill link (always solid accent, not affected by scroll) */
.orbis-nav__item--blog-pill {
  pointer-events: auto;
}

.orbis-nav__link--blog {
  background: var(--c-accent) !important;
  color: #fff !important;
  opacity: 1 !important;
  border-radius: 980px;
  padding: 4px 12px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--ff-body);
  transition: background 0.18s ease;
}

.orbis-nav__link--blog:hover {
  background: var(--c-accent-hover) !important;
  opacity: 1 !important;
}

/* Profile avatar */
.orbis-nav__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity 0.15s;
  color: rgba(255, 255, 255, 0.85);
}

.orbis-nav__avatar:hover {
  opacity: 0.8;
}

body.scrolled .orbis-nav__avatar,
body:not(.has-hero) .orbis-nav__avatar {
  color: var(--c-nav-text);
}

.orbis-nav__avatar-img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.orbis-nav__avatar-svg {
  width: 32px;
  height: 32px;
  display: block;
}

/* ── Hamburger button ────────────────────────────────────────── */
.orbis-nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  justify-self: end;
  flex-shrink: 0;
}

.orbis-nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
  transform-origin: center;
}

body.scrolled .orbis-nav__burger span,
body:not(.has-hero) .orbis-nav__burger span {
  background: var(--c-nav-text);
}

/* Animated X when open */
.orbis-nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.orbis-nav__burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.orbis-nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile drawer ───────────────────────────────────────────── */
.orbis-nav__mobile-drawer {
  display: none;
  position: fixed;
  top: 52px;
  left: 0;
  right: 0;
  background: var(--c-nav-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--c-nav-border);
  padding: 0;
  z-index: 999;
  /* slide-down animation */
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.orbis-nav__mobile-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.orbis-nav__mobile-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.orbis-nav__mobile-link {
  display: block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--c-nav-text);
  text-decoration: none;
  border-bottom: 1px solid var(--c-border);
  transition: background 0.12s;
}

.orbis-nav__mobile-links li:last-child .orbis-nav__mobile-link {
  border-bottom: none;
}

.orbis-nav__mobile-link:hover {
  background: color-mix(in srgb, var(--c-accent) 8%, transparent);
  color: var(--c-accent);
}

.orbis-nav__mobile-auth {
  border-top: 1px solid var(--c-border);
  margin-top: 8px;
  padding-top: 4px;
}

.orbis-nav__mobile-link--muted {
  color: var(--c-text-muted);
  font-weight: 400;
}

.orbis-nav__mobile-link--active {
  color: var(--c-accent);
  font-weight: 600;
}

/* ── Hide mobile-only elements on desktop ────────────────────── */
.orbis-nav__mobile-title,
.orbis-nav__mobile-theme-btn {
  display: none;
}

/* ── Blog search bar (desktop centre) ───────────────────────── */
.orbis-nav__blog-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
}


.orbis-nav__search-form {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
}

.orbis-nav__search-input {
  width: 340px;
  height: 36px;
  padding: 0 14px;
  border-radius: 980px;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 13px;
  font-family: var(--ff-body);
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.18s, background 0.18s, width 0.2s;
}

.orbis-nav__search-input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.orbis-nav__search-input::-webkit-search-cancel-button {
  filter: brightness(0) invert(1);
  opacity: 0.6;
}

body.scrolled .orbis-nav__search-input::-webkit-search-cancel-button,
body:not(.has-hero) .orbis-nav__search-input::-webkit-search-cancel-button {
  filter: brightness(0);
  opacity: 0.5;
}

.orbis-nav__search-input:focus {
  border-color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.18);
}

body.scrolled .orbis-nav__search-input,
body:not(.has-hero) .orbis-nav__search-input {
  border-color: var(--c-border);
  background: var(--c-bg-alt);
  color: var(--c-text);
}

body.scrolled .orbis-nav__search-input::placeholder,
body:not(.has-hero) .orbis-nav__search-input::placeholder {
  color: var(--c-text-muted);
}

body.scrolled .orbis-nav__search-input:focus,
body:not(.has-hero) .orbis-nav__search-input:focus {
  border-color: var(--c-accent);
  background: var(--c-bg-card);
}

.orbis-nav__search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 12px !important;
  flex-shrink: 0;
  box-sizing: border-box;
  outline: none;
  border: none;
  cursor: pointer;
}

/* ── Mobile search ───────────────────────────────────────────── */
.orbis-nav__mobile-search {
  padding: 12px 24px;
  border-bottom: 1px solid var(--c-border);
}

.orbis-nav__search-form--mobile {
  width: 100%;
}

.orbis-nav__search-form--mobile .orbis-nav__search-input {
  flex: 1;
  width: auto;
  border-color: var(--c-border);
  background: var(--c-bg-alt);
  color: var(--c-text);
}

.orbis-nav__search-form--mobile .orbis-nav__search-input::placeholder {
  color: var(--c-text-muted);
}

/* ── Navis nav links (centre, pill-highlighted active) ───────── */
.orbis-nav__centre:has(.orbis-nav__navis-link) {
  gap: 12px;
}

.orbis-nav__navis-link {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 980px;
  border: 1.5px solid transparent;
  transition: opacity 0.15s, border-color 0.15s;
}

/* Hero state (transparent nav): white border pill */
.orbis-nav__navis-link--active {
  border-color: rgba(255, 255, 255, 0.85);
  opacity: 1;
}

/* Scrolled / non-hero state: accent border pill */
body.scrolled .orbis-nav__navis-link--active,
body:not(.has-hero) .orbis-nav__navis-link--active {
  border-color: var(--c-accent);
}

/* ── Mobile layout: handled in navbar_mobile.css ─────────────── */